Chicago Pneumatic CP7778 Series User manual

CP7778 Series
Impact Wrench
1” Square & #5 Spline Drive Model “K”
Operator’s Manual
To reduce risk of injury, everyone using, installing, repairing, maintaining,
changing accessories on, or working near this tool must read and
understand these instructions before performing any such task.
Chicago Pneumatic Tool Company

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8940162803
8940162152
8940162801
8940162809
8940162155
8940162156
8940162810
8940162158
8940162811
8940162160
8940162161
8940162165
8940162812
8940162167
8940162168
8940162169
8940162170
8940162171
8940162172
8940162173
8940162174
8940162802
8940162177
8940162178
8940162179
8940162180
8940162181
8940162182
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8940162184
8940162185
8940162186
8940162187
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8940162189
8940162190
8940162191
8940162192
8940162193
8940162194
8940162195
8940162196
8940162197
8940162198
8940162199
CA155779
8940162200
8940162201
8940162202
8940162804
8940162204
8940162205
Throttle Handle Assembly
(Incl: Index No. 2, 3)
Bushing-Throttle
Bushing-Reverse Valve
Lever-Throttle
Pin-Throttle Lever
Pin-Lever Stop
Cover-Slot
Valve-Throttle
Plunger-Throttle Valve
Spring-Throttle Valve
Inlet Bushing
O-Ring
Valve-Reverse
O-Ring
Pin
Ball
Spring
Pin
Gasket-Handle
Screw
Lock Washer
Housing-Motor
Bearing
Plate-Rear End
Pin
Rotor
Blade Set (6)
Liner
Pin
Plate-Front End
Bearing
Cage
Cam
Dog
Bushing-Cage
Anvil (1in. Sq. Dr.)
(Incl: Index Nos. 41, 42)
Anvil (1in. Sq. Dr. 6 in. Extension)
(Incl: Index Nos. 41, 42)
Anvil (#5 Spline 6 in. Extension)
(Incl: Index Nos. 41, 42)
Ring-Friction (1 in. Sq.)
Ring-Friction (#5 Spline)
O-Ring (1 in. Sq.)
O-Ring (#5 Spline)
Clutch Housing Assembly
(Incl: Index Nos. 44, 45)
Bushing-Clutch Housing
Seal
Decal-Safety Warning
Gasket-Clutch Housing
Screw
Lock Washer
Handle-Support
Screw
Lock Washer
1
2
3
4
5
6
7
8
9
10
11
15
17
18
19
19A
20
21
22
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24
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27
28
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47
48
49
51
52
53
Index
No. Index No.
Part
No. Part No.
Description Description No.
Req'd.
No.
Req'd.
CP7778 Series
Impact Wrench
45
48 49 43
46
47
51
53 52
44 41
42
38
39
37
36
35
39
39
25
34
33
32 31
32
29
30 27
28
26
22
24 23
4
17
6
5
2
9
21
3
18
19
19A
20
17
8
10
15
11
Tune-Up Kit
8940162816 (Incl: Index Nos. 15, 18, 22, 30, 41, 42, 45, 47)
Protective Boot
8940162416

CP7778 Series
Impact Wrench
Copyright 2006, Chicago Pneumatic Tool Company
All rights reserved. Any unauthorized use or copying of the contents or part thereof is prohibited. This applies in particular to trademarks,
model denominations, part numbers and drawings. Use only authorized parts. Any damage or malfunction caused by the use of
unauthorized parts is not covered by Warranty or Product Liability.
INSTRUCTION MANUAL
Air Supply Requirements
1. Supply tool with 90 psig (6.2 bar) of clean, dry air.
Higher pressure drastically reduces tool life.
2. Connect tool to air line using pipe, hose, and
fitting sizes shown in the diagram.
Lubrication
1. Use an air line lubricator with SAE #10 oil,
adjusted to two (2) drops per minute. If an air line
lubricator cannot be used, add air motor oil to the
inlet once a day.
2. Use 3 oz. (88 ml) of CP Pneu-Lube Synthetic
Clutch Grease 8940158455.
Operation
1. The intended use of this impact wrench is with
impact rated sockets operating upon threaded
fasteners. To operate, pull trigger on handle. To
operate in forward rotation, turn reverse valve
toward forward arrow position. To operate in
reverse, turn valve toward reverse arrow position.
2. This impact wrench is equipped with a regulator to
enable adjustment of output power. Turn the
regulator knob to # 3 for maximum power, to # 1
for minimum power.
Maintenance
1. After first year, disassemble and inspect air motor
and impacting clutch every three (3) months if the
tool is used every day. Replace damaged or worn
parts.
2. High wear parts are underlined in the parts list.
3. To keep downtime to a minimum, the following
service kits are recommended:
Tune-Up Kit 8940162816
(Incl: 15, 18, 22, 30, 41, 42, 45, 47)

SAFETY INSTRUCTIONS
To reduce risk of injury, everyone using, installing, repairing,
maintaining, changing accessories on, or working near this tool must
read and understand these instructions before performing any such
task.
The goal of Chicago Pneumatic is to produce tools that help
you work safely and efficiently. The most important safety
device for this or any tool is YOU. Your care and good
judgment are the best protection against injury. All possible
hazards cannot be covered here, but we have tried to
highlight some of the important ones.
Air Supply And Connection Hazards
!Air under pressure can cause severe injury.
!Always shut off air supply, drain hose of air pressure and
disconnect tool from air supply when not in use, before
changing accessories or when making repairs.
!Never direct air at yourself or anyone else.
!Whipping hoses can cause serious injury. Always check for
damaged or loose hoses and fittings.
!Do not use quick disconnect couplings at tool. See
instructions for correct set-up.
!Whenever universal twist couplings are used, lock pins
must be installed.
!Do not exceed maximum air pressure of 90 psi (6.2 bar) or
as stated on tool nameplate.
Entanglement Hazards
!Keep away from rotating drive.
!Do not wear jewelry or loose clothing.
!Choking can occur if neckwear is not kept away from tool
and accessories.
!Scalping can occur if hair is not kept away from tool and
accessories.
!Avoid direct contact with accessories during and after use.
Gloves will reduce the risk of cuts or burns.
!Use only proper accessory retainers (see parts list). Use
deep sockets wherever possible.
Projectile Hazards
!Always wear impact-resistant eye and face protection when
involved with or near the operation, repair or maintenance
of the tool or changing accessories on the tool.
!Be sure all others in the area are wearing impact-resistant
eye and face protection.
!Even small projectiles can injure eyes and cause blindness.
!Use only impact wrench sockets and accessories in good
condition. Sockets in poor condition or hand sockets and
accessories used with impact wrenches can shatter.
!Always use the simplest hook-up possible. Long, springy
extension bars and adapters absorb impact power and
could break. Use deep sockets wherever possible.
!Never operate the tool off of the work. It may run too fast
and cause the accessory to be thrown off the tool.
!Serious injury can result from over-torqued or under-
torqued fasteners, which can break, or loosen and
separate. Released assemblies can become projectiles.
Assemblies requiring a specific torque must be checked
using a torque meter.
Note: So-called "click" torque wrenches do not check for
potentially dangerous over-torque conditions.
Workplace Hazards
!Slip/Trip/Fall is a major cause of serious injury or death.
Beware of excess hose left on the walking or work surface.
!High sound levels can cause permanent hearing loss. Use
hearing protection as recommended by your employer or
OSHA regulation (see 29 CFR part 1910).
!Maintain a balanced body position and secure footing.
!Be in control of the throttle at all times. Do not get caught
between the tool and the work.
!Repetitive work motions, awkward positions and exposure
to vibration can be harmful to hands and arms. If
numbness, tingling, pain or whitening of the skin occurs,
stop using the tool and consult a physician.
!Avoid inhaling dust or handling debris from the work
process which can be harmful to your health. Use dust
extraction and wear respiratory protective equipment when
working with materials which produce airborne particles.
!Proceed with care in unfamiliar surroundings. Be aware of
potential hazards created by your work activity. This tool is
not insulated for coming into contact with electric power
sources.
!Some dust created by power sanding, sawing, grinding,
drilling and other construction activities contains chemicals
known to the State of California to cause cancer and birth
defects or other reproductive harm. Some examples of
these chemicals are:
- Lead from lead based paints
- Crystalline silica bricks and cement and other masonry
products
- And Arsenic and chromium from chemically-treated
rubber
Your risk from these exposures varies, depending on how
often you do this type of work. To reduce your exposure to
these chemicals: work in a well ventilated area, and work
with approved safety equipment, such as dust masks that
are specially designed to filter out microscopic particles.
Additional Safety Topics
!This tool and its accessories must not be modified.
!This tool is not recommended for use in explosive
atmospheres.
!Operators and maintenance personnel must be physically
able to handle the bulk, weight and power of the tool.
!For professional use only.
Check out the collection of air impact wrenches we offer.